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1、square n.平方；正方形平方；正方形meter n.米；公尺米；公尺deep adj.深的；纵深的深的；纵深的desert n.沙漠沙漠 population n.人口；人口数量人口；人口数量 Asia n.亚洲亚洲feel free （可以）随便（做某事）（可以）随便（做某事）tour n.&v.旅行；旅游旅行；旅游tourist n.旅行者；观光者旅行者；观光者wall n.墙墙amazing adj.令人大为惊奇的；令人大为惊奇的；令人惊喜（或惊叹）的令人惊喜（或惊叹）的ancient adj.古代的；古老的古代的；古老的 protect v.保护；防护保护；防护 wide adj
2、.宽的；宽阔的宽的；宽阔的as far as I know 就我所知就我所知NEXT square n.平方；正方形平方；正方形 Can you draw a circle within a square?你你能能在在正正方方形形里里画画一个圆圈吗一个圆圈吗?BACKdeep adj.深的；深的；纵纵深的深的The river in our village is deeper than before.我我们们村村子子里的小河比以前更深了。里的小河比以前更深了。【拓拓展展】long长长；wide宽宽；high/tall高；高；far远远的的BACKtour n.&v.旅行；旅游旅行；旅游tour
3、ist n.旅行者；旅行者；观观光者光者【辨辨析析】journey，tour，trip和和travel journey指指（海海、陆陆、空空）长长途旅行，含有辛苦的意思；途旅行，含有辛苦的意思；tour指指途途中中作作短短期期逗逗留留的的巡巡回回旅旅行行，强强调调游游览览多多处处，常指常指观观光等；光等；trip通通常常指指往往返返定定时时的的短短途途旅行，如出差度假等；旅行，如出差度假等；travel多多指指长长期期或或长长途途的的观观光旅行，尤其指到国外。光旅行，尤其指到国外。BACK1a Match the facts you know.Warming up Qomolangma Qom
4、olangma runs along the border between China and Nepal.It is covered with snow all the year round.Its 8,844.43 high,the highest in the world.Its 26 kilometers long.The Nile The Nile is the longest river in the world.Its 6,671 kilometers long.It runs through nine countries and runs into the Mediterran
5、ean Sea(地中海地中海)in the end.The Caspian Sea The Caspian Sea is the biggest lake in the world.It lies in the border between Asia and Europe.The Sahara The Sahara is the biggest desert in the world.It is located in the northern Africa.The climate conditions are very bad.The Sahara is one of the earths m
6、ost not suitable for biological survival.The Yangtze River The Yangtze River is the third longest river in the world,the first Asian rivers.Its 6211.31 kilometers long.It runs into the East Sea in Shanghai finally.Qomolangma about 9,600,000 square kilometers in sizeThe Sahara1,025 meters deepThe Cas
7、pian Sea6,671 kilometers longThe Nile8,844.43 meters high1b Listen and complete the sentences.1.Qomolangma is _ than any other mountain in the world.2.The Sahara is _ desert in the world.higherthe biggest3.The Caspian Sea is _ of all the salt lakes.4.The Nile is _ river in the world.the deepestthe l
8、ongest1c Use the information in 1b to make conversations.A:What is the highest mountain in the world?B:Qomolangma.A:What is the longest river in the world?B:The Nile.A:What is the largest lake in the world?B:The Caspian Sea.A:What is the largest desert in the world?B:The Sahara.Listening2a Listen an
9、d number the facts 1-4 in the order you hear them._ The Yangtze River is about _ kilometers long and the Yellow River is _ kilometers long._ China has the biggest population in the world.Its a lot bigger than the population of the US._ China is over _ years old.It has a much longer history than the
10、US.The US is not even _ years old._ China is almost as big as the US,but it is the biggest country in Asia.12342b Listen again and fill in the blanks in 2a with the numbers in the box.6,300 5,000 5,464 300_ The Yangtze River is about _ kilometers long and the Yellow River is _ kilometers long._ Chin
11、a has the biggest population in the world.Its a lot bigger than the population of the US.6,3005,464_ China is over _ years old.It has a much longer history than the US.The US is not even _ years old._ China is almost as big as the US,but it is the biggest country in Asia.6,300 5,000 5,464 3005,00030
12、02c Make conversations using the information in 2a.A:Did you know that China is one of the oldest countries in the world?B:Yes,I did.its much older than my country.A:Did you know that Yangtze River is the longest river in China?B:Yes,I did.Its 6,300 meters long.C:Wow!Thats long!2d Role-play the conv
13、ersation.Guide:Feel free to ask me anything on todays Great Wall tour.Tourist 1:How long is the wall.Guide:Ah,the most popular question!If were only talking about the parts from the Ming Dynasty,its about 8,850 kilometers long.This makes it the longest wall in the world.Tourist 2:Wow,thats amazing!W
14、hy did the ancient emperors build the wall?Guide:The main reason was to protect their parts of the country.As you can see,its quite tall and wide.As far as I know,there are no man-made object as big as this.Tourist 3:Is Badaling part of the Ming great wall?Guide:Yes,its the most famous part.China ha
15、s the biggest populationin the world.中国是世界上人口中国是世界上人口最多的国家。最多的国家。(1)当当population表表示示整整体体人人口口，即即单单独独作作主主语语时时，谓谓语语动动词词多多用用单单数数；表表示示部部分分人人口口，即即有有分分数数或或百百分分数数修修饰饰时时，谓语动词谓语动词多用复数。多用复数。Thirty percent of the population live in the cities.30 的人口住在城市。的人口住在城市。(2)指指人人口口“多多”或或“少少”时时，一般一般用用big,large或或small来修饰。来修
16、饰。The population in this village is much larger than before.这个村这个村子的人口比以前多了很多。子的人口比以前多了很多。(3)表表示示某某国国、某某城城市市有有多多少少人人口口时时，要要与与of连连用用。句句式式有有两两种种：The population of+某某国国(某某城城市市)+is=某某国国(某某城城市市)+has a population of。有有时时，表表达达“有有多多少少人人口口的的城城市市”时时，可可用用a city with a population of.。China has a population of 1
17、.3 billion.中国有大约中国有大约13亿人口。亿人口。(4)提提问问“有有多多少少人人口口”时时用用what或或how large。Whats (=How large is）the population of China?中中国国的的人口是多少？人口是多少？BACK.,its about 8.850 kilometers long.它大概它大概8850千米长。千米长。“基基 数数 词词+长长 度度 单单 位位 名名 词词 meters/kilometers+long/wide/high/deep”结结构构，表表示示某某物物有有多多长长，多多宽宽，多多高高，多深等。多深等。【拓拓展展】对对长长、高高、宽宽、深深度度等等提提问问用用how long/high/wide/deep等。等。The street is 10 meters wide.这这条条街有街有10米米宽宽。The Nile is 6,671 kilometers long.尼尼罗罗河有河有6671千米千米长长。BACK